<template>
	<view>
		<view class="scroll-container">
			<scroll-view scroll-y="true" :style="{height: `${wh}px`}" class="scroll-container-left">
				<block v-for="(item, i) in cateList" :key="item.cat_id">
					<view class="scroll-left-item" :class="['scroll-left-item', i === active ? 'active' : '']"
					@click="changeActive(i)">
						{{item.cat_name}}
					</view>
				</block>
			</scroll-view>
			<scroll-view scroll-y="true" :style="{height: `${wh}px`}" class="scroll-container-right" :scroll-top="scrollTop">
				<view class="catLevel2" v-for="(item, i) in cateLevel2" :key="item.cat_id">
					<view class="cate-l2-title">/{{item.cat_name}}/</view>
					<view class="catLevel2-cons">
						<view class="catLevel2-item" v-for="(item2, i2) in item.children" :key="item2.cat_id" @click="gotoGoodsList(item2)">
							<image :src="item2.cat_icon.replace('ugo-dev', 'hmugo-web')"></image>
							<text>{{item2.cat_name}}</text>
						</view>
					</view>
				</view>

			</scroll-view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				// 屏幕可用高度
				wh: 0,
				// 分类列表
				cateList: [],
				active: 0,
				// 二级分类
				cateLevel2: [],
				scrollTop: 0
			};
		},
		onLoad() {
			const sysInfo = uni.getSystemInfoSync()
			// console.log(sysInfo, 'sysInfo')
			this.wh = sysInfo.windowHeight
			this.getCateList()
		},
		methods: {
			async getCateList() {
				const {data: res} = await uni.$http.get('/api/public/v1/categories')
				console.log(res, 'res000000');
				if (res.meta.status !== 200) return uni.$showMsg()
				this.cateList = res.message
				this.cateLevel2 = res.message[0].children
				console.log(this.cateLevel2, 'this.cateLevel2')
			},
			changeActive(i) {
				this.active = i
				this.cateLevel2 = this.cateList[i].children
				this.scrollTop = this.scrollTop === 0 ? 1 : 0;
			},
			gotoGoodsList(item) {
				uni.navigateTo({
					url: `/subpkg/goods_list/goods_list?cid=${item.cat_id}`
				})
			}
		}
	}
</script>

<style lang="scss">
.scroll-container {
	display: flex;
	.scroll-container-left {
		width: 120px;
		.scroll-left-item {
			line-height: 60px;
			text-align: center;
			background-color: #f7f7f7;
			font-size: 12px;
			&.active {
				background-color: #fff;
				position: relative;
				&::before {
					content: "";
					display: block;
					width: 3px;
					height: 30px;
					background-color: #c00000;
					position: absolute;
					top: 50%;
					left: 0;
					transform: translateY(-50%);
				}
			}
		}
	}
	.cate-l2-title {
		text-align: center;
		font-size: 12px;
		font-weight: bold;
		padding: 15px 0;
	}
	.catLevel2-cons {
		display: flex;
		flex-wrap: wrap;
		.catLevel2-item {
			width: 33.33%;
			display: flex;
			flex-direction: column;
			justify-content: center;
			align-items: center;
			margin-bottom: 10px;
			image {
				width: 60px;
				height: 60px;
			}
			text {
				font-size: 12px;
			}
		}
	}
	
}
</style>
